Oil burner



Patented Jan. 15, 1924.

UNITED STATES 1,480,84 PATENT OFFICE.

Gnonen w. wALsn, or KANSAS CITY, KANSAS! OIL BURNER.

Application led January 9, 1922. Serial No. 527,997.

To all whom t may concern:

Be it known that I, GEORGE lV. WALSH, a citizen of the United States, and resident of Kansas City, county of Wyandotte, State of Kansas, have invented a certain new and useful Improvement in Oil Burners, of which the following is a complete specification.

This inventionrelates `to oil or distillate burners and has for one of its objects to produce a burner of this character in which the oil feed lines and generator are protected against the deposit thereon of carbon.

Another object is to produce a burner in which the generator is so constructed that vaporized fuel entering therein shalll, be widely and uniformly distributed and held under sutlicient pressure to insure a steady llame at the point of combustion. y

A further object is to produce a burner of the character set forth in which the gas generated is super-heated before it issues through the jet orifice and is thus in the best possible condition forv ignition.

A still further object is to produce a burner of the character set forth of simple, strong, durable, efficient and inexpensive construction; and in order that it may be fully understood, reference is'tov be had to the accompanying drawing, in which Figure 1 is a top planview of the burner.

Figure 2 is a section on the line II-II of Figure 1.

Figure 3 is an enlarged central vertical section taken through a part of the device.

Figure 4 is an enlarged central Vertical section taken through the jet of the burner.

In the said drawing, where like reference characters identify corresponding parts in all of the gures, 2 illustrates a gas generator of substantially hollow discus form. The inner face of the upper pai-tof the generator is formed with a series of concentric flutes 8, which will tend to direct fuel entering the generator downwardly toward the bottom of the same, as will be described hereinbelow.

At diametrically opposite points, the generator is provided with a pair of enlargements 4 which are internally threaded for the reception of nipples 6, respectively' engaged with elbows 8. The elbows 8 are connected' to stand pipes 10 by means of pipe connections 12and nipples 14, the lower ends of said stand pipes being connected by means of elbows 16 and pipe sections 18,

one of said pipe sections being joined by means of a union 20 for convenience in as# .sembling the burner, to a T-coupling 22.

the generator 2 will be protected by means of a shield 26, of slightly concave formto conform to the shape of the generator, and said generator will preferablyr contact with the shield only .at its bottomxandv at the bottoms of its two enlargements 4, as illustrated, the shield being bifurcated at diametrically opposite points 28 in order to receive the nipples 14 and be supported by the pipe connections 12as illustrated.

Communicating centrally of the top of the generator, is a pipe 30 whichis connected to a vertical pipe 31 leading downwardly through a passageway 32 formed in the generator and connected at its lower end to a pipe 34 which is formed into a coil 36, ciependently supported by said pipe 31 centrally of the bottom of the shield 26. The

lower end of the coil is connected to a short pipe section 38, closed at its end by a cap 40, and centrally of the coil,iprovided with a threaded opening for thereception of a jet tip 42 provided with an orifice 44 for the discharge of gas, as will be hereinafter described.

Each of the sta-nd pipes 10 is protected from deposits of carbon by means of sleeves4 46 of slightly greater diameter than the pipes in order to provide an air space around the same. The coil 36 is provided with an internal casing 48, flanged at its upper end as at 50 for engagement with the upper convolution of the coil and depending therefrom. This shield is provided-in order to protect the coil from direct con tact with the flame for the purpose `of protccting the same and also in order that the flame may be directed vertically upward and projected directly against the under face 0f the shield. l

The operation of the burner is substantially, as follows: Oil is permitted to flow into. the generator until same is filled, and

then the flow of such oil is cut off.. A small quantity of fuel is now poured onthe upper part of the generator and will follow the surface thereof and will be depositedy in the concave shield 26. This liquid fuel is now ignited and the heat of such burning` oil will commence the generation of gas within the generator. As soon as the operato-r notices gas escaping from the jet orifice 44, he will ignite such gas andthe flame thereof wil-lr be directed upwardly through the casing 48 and will contact with the bottomy of the shield 26 and will'y then be projected-outwardly betweenthe curved portion of the casing and thel bottoni of the shield. The operator will now open the fuelI supply valve (not shown) in order that the supply of fuel to the burner shall be continuous.

The gas passing through the coilE will be superheatedl by the flame within the casing 48. In this connection it is desirable toY state that when the coil is not employed, the flame will have a more or less yellow color show'- ing the presence of red hot, but unconsumed, carbon particles, but that when the coil' is in position the flame will be white.

The deposit of carbon on the bottom of the shield 26 andon the-sleeves 46 is'avoid'ed by the fact that all ofv said members are provided with an air-'space on their opposite sides, thusy permitting the said parts to be heated to substantially the same temperature on both of their faces.

After the burner has been in operation for some time, sufficient gas is generated to cause the backing up of the liquid fuel to some pointv in the stand pipes, and the generator stands substantially completely charged with gas. It' willl be understood, however, that f more or less liquid fuel will at times be drawn into' thel generator. When the entry ofy this liquid fuel occurs it will ystrike the concentric fluted surface 3 of the underV face of' the upper partof theI generator and will thus be deflected downwardly to the bottom of the generator where it will be immediately evaporated by Contact with the hot surface thereof. By placing the fuel pipes at diametrically opposite points itk is also believedth-at the flutes will'set up a whirling action in the gas when the latter enters the generator.

The passageway 32 is provided in order that thel pipe 32 may be protected from direct contact with the flame, it being apparentfrom the drawing4 that the only exposed portion will be that part of pipe 31 passing between the plane parallel withY the bottomI of the shield andthe plane ofthe top ofthe curved portion of the casing',

From the above description, it will be apparent that I have produced a burner of the character described which possesses all of charge pipe in communication with said gen era-tor, and' a gasjet located centrally of said generatorI and below the same.

2f. In an oil burner, the combination of a hol-low generator, a fuel supp-ly pipe for said generator, a gas discharge pipe in coinmunication withV said generator, a coil locatedl below and vcentrally of said generator and in communication withV said gas' discharge pipe, an internaly casing for and supported rby said coil, and a jet pipe substantially in axial' alinement wit-lr said casing.

3'. In an oil burner, thel combination of ahollow generator of discus formand provided with a series of flutes on the innery face of its top, and ay jet located' below andcentrally of said generator.

4. In an oil burner, the combination of a hollow generator, of discus form and pro-- vided with a series of flutes on thel inner facel of its top, a pair of fuel inlet pipes com-v municating with said generator at diametrically opposite points, a gas discharge pipe in communication withl said generator, and a gas jet located below and centrally of said generator.

5. In an oil burner, the combination of a hollow generator, a shieldi for the bottom of said generator, a fuel supply pipe in communication with said generator, a gas discharge pipe in communication with said generator, a coil in communication with said gasy discharge pipe and' located below and centrally ofv said genera-tor, an internal casing fork said coil, and a glas jetlocatedbelow and in axial alinement with said casing.

6. In an oil burner of discus form, a fuel' supply pipe communicating therewith, a gasdischarge pipe in communication withy the top of said generator and passing downwardly through said generator, and a: jet carried by saidy discharge below said gen erator. v

7. In an oil' burner, a lpair of vertical fuel pipes, a generator supported by and' inv communication with said: pipes, a shield' underlying said generator', and a sleeve encircling'each of said oilpi-pesand supporting said shield.

In witness whereof I hereunto affix my GEORGE WALSH.

signature.

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